Human intervention has so irrevocably changed the delta that it’s now a “novel ecosystem,” say researchers

Speeding down a channel of the Cache Slough, an appendage of the Sacramento-San Joaquin River Delta, biologist Matthew Young deftly navigates our small research boat, which is sitting rather low in the water. Dressed in construction worker orange waders and a jacket,…» Read more

After waffling about changing the Great Barrier Reef’s World Heritage Site status for the last two years, the United Nations recently let Australia off with a warning that the iconic reef could be added to the “World Heritage in Danger” list in…» Read more